…nge (#30259)

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## **Description**

Adds the related assets as pills with price variation, in a sliding
carousel. When the user taps a pill, it will redirect to the asset perps
page.
Also fires the segment `WHATS_HAPPENING_INTERACTED` /
`related_asset_pressed` analytics event on tap.


https://github.com/user-attachments/assets/aff6636d-58df-4177-8413-a32a41f704d9


## **Changelog**

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CHANGELOG entry: null

## **Related issues**

Fixes:

## **Manual testing steps**

```gherkin
Feature: my feature name

  Scenario: user [verb for user action]
    Given [describe expected initial app state]

    When user [verb for user action]
    Then [describe expected outcome]
```

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

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### **After**

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## **Pre-merge author checklist**

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- [ ] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask Mobile
Coding
Standards](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
- [ ] I've included tests if applicable
- [ ] I've documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [ ] I've applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

#### Performance checks (if applicable)

- [ ] I've tested on Android
  - Ideally on a mid-range device; emulator is acceptable
- [ ] I've tested with a power user scenario
- Use these [power-user
SRPs](https://consensyssoftware.atlassian.net/wiki/spaces/TL1/pages/edit-v2/401401446401?draftShareId=9d77e1e1-4bdc-4be1-9ebb-ccd916988d93)
to import wallets with many accounts and tokens
- [ ] I've instrumented key operations with Sentry traces for production
performance metrics
- See [`trace()`](/app/util/trace.ts) for usage and
[`addToken`](/app/components/Views/AddAsset/components/AddCustomToken/AddCustomToken.tsx#L274)
for an example

For performance guidelines and tooling, see the [Performance
Guide](https://consensyssoftware.atlassian.net/wiki/spaces/TL1/pages/400085549067/Performance+Guide+for+Engineers).

## **Pre-merge reviewer checklist**

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unchecked box is ambiguous, a checked box means the reviewer consciously
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- [ ] I've manually tested the PR (e.g. pull and build branch, run the
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- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> Adds new interactive UI inside the `What's Happening` carousel that
subscribes to live perps price streams and triggers trade navigation +
analytics on tap, which can impact performance and event accuracy if
miswired.
> 
> **Overview**
> **Adds a horizontal “related assets” pill slider to each
`WhatsHappeningCard`**, replacing the prior single “`<symbol> +N`” label
and moving the date display to the top row alongside the impact badge.
> 
> Each pill can optionally show **24h % change from live perps prices**,
and when tradable is **pressable to open perps trade navigation** while
emitting a new analytics interaction type `related_asset_pressed`
(`MetaMetricsEvents.WHATS_HAPPENING_INTERACTED`).
> 
> To support live pricing, the homepage `WhatsHappeningSection` carousel
is now wrapped in `PerpsStreamProvider`, and
`useWhatsHappeningAssetPrices` is refactored to accept `RelatedAsset[]`
directly (with tests updated/added for the new pill/slider behavior and
updated skeleton layout).
> 
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit
77b44dd. Bugbot is set up for automated
code reviews on this repo. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->